Nokea
Which biological used in Expanded Program on Immunization (EPI) is stored in the freezer?
- A. DPT
- B. OPV
- C. Hepatitis B vaccine
- D. Measles vaccine
Correct Answer: B
Rationale: The correct answer is B: OPV. The oral polio vaccine (OPV) used in the Expanded Program on Immunization (EPI) is stored in the freezer to maintain its potency. OPV is a live vaccine that requires cold storage to prevent the virus from becoming inactive. DPT, Hepatitis B vaccine, and Measles vaccine are typically stored in the refrigerator, not the freezer, as they are either killed or attenuated vaccines that remain stable at higher temperatures. Therefore, the need for freezer storage specifically points to OPV as the correct answer.
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In the census of the Philippines in 1995, there were about 35,299,000 males and about 34,968,000 females. What is the sex ratio?
- A. 99.06:100
- B. 100.94:100
- C. 50.23%
- D. 49.76%
Correct Answer: B
Rationale: The sex ratio is calculated by dividing the number of males by the number of females and multiplying by 100. In this case, (35,299,000 / 34,968,000) x 100 = 100.94:100. This means for every 100 females, there are 100.94 males, indicating a slightly higher number of males.
Choice A (99.06:100) is incorrect as it suggests fewer males than females, which is not the case. Choice C (50.23%) and choice D (49.76%) are incorrect as they represent percentages rather than ratios, leading to a misleading interpretation of the data.
In a mother's class, you discuss proper breastfeeding technique. Which of these is a sign that the baby has latched on the breast properly?
- A. The baby takes shallow, rapid sucks
- B. The mother does not feel nipple pain
- C. The baby's mouth is only partly open
- D. Only the mother's nipple is inside the baby's mouth
Correct Answer: B
Rationale: The correct answer is B because if the mother does not feel nipple pain, it indicates that the baby has latched on properly. Nipple pain is a common sign of improper latch, which can lead to discomfort and ineffective breastfeeding. The other choices are incorrect: A indicates ineffective sucking, C suggests a shallow latch, and D signifies a shallow latch that only involves the nipple, not the areola, leading to potential issues with milk transfer and nipple pain.
Sputum examination is the major screening tool for pulmonary tuberculosis. Clients may sometimes receive false negative results in this exam. This means that the test is not perfect in terms of which characteristic of a diagnostic examination?
- A. Effectiveness
- B. Efficacy
- C. Specificity
- D. Sensitivity
Correct Answer: D
Rationale: Step 1: Define false negative - An individual with the disease incorrectly identified as disease-free.
Step 2: Understand sensitivity - Ability to correctly identify individuals with the disease.
Step 3: False negatives indicate low sensitivity.
Step 4: Sensitivity is a key characteristic of a diagnostic test.
Step 5: Therefore, the correct answer is D: Sensitivity.
Summary:
A: Effectiveness - Overall ability of the test to achieve its intended purpose.
B: Efficacy - Ability of the test under ideal conditions.
C: Specificity - Ability to correctly identify individuals without the disease.
D: Sensitivity - Ability to correctly identify individuals with the disease.
You are in a client's home to attend to a delivery. Which of the following will you do first?
- A. Set up a sterile area
- B. Put on a clean gown and apron
- C. Cleanse the client's vulva with soap and water
- D. Note the interval, duration and intensity of labor and contractions
Correct Answer: D
Rationale: The correct answer is D because as a healthcare provider attending to a delivery, noting the interval, duration, and intensity of labor and contractions is crucial for assessing the progress of labor and ensuring the safety of both the mother and the baby. This information helps in determining if the delivery is progressing normally or if there are any complications that require immediate attention. Setting up a sterile area (choice A) and putting on a clean gown and apron (choice B) are important steps but should come after assessing the labor progress. Cleansing the client's vulva with soap and water (choice C) is not recommended during labor as it can introduce bacteria and increase the risk of infection.
Knowing that malnutrition is a common community health issue, you decided to conduct a nutritional assessment. What population is particularly vulnerable to protein-energy malnutrition (PEM)?
- A. Pregnant women and the elderly
- B. Under 5-year-old children
- C. 1-4-year-old children
- D. School-age children
Correct Answer: B
Rationale: The correct answer is B, under 5-year-old children. They are particularly vulnerable to protein-energy malnutrition (PEM) due to their high nutritional needs for growth and development. Infants and young children have limited food intake capacity and are dependent on caregivers for proper nutrition. This age group is at a critical stage of growth, making them more susceptible to the negative impact of malnutrition on physical and cognitive development. Pregnant women and the elderly (choice A) have specific nutritional needs but are not as vulnerable to PEM as young children. Choices C and D are incorrect as 1-4-year-old children and school-age children have a lower risk of PEM compared to under 5-year-old children.